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A9MEM3255 iEM3255 energy meter - CT - Modbus - 1 digital I - 1 digital O

A9MEM3255 iEM3255 energy meter - CT - Modbus - 1 digital I - 1 digital O


The Acti9 iEM3000 series energy meters offer an attractive range of three-phase DIN rail-mounted energy meters with an LCD display. Additional local signaling includes green LED power-on indicator, flashing yellow LED for accuracy checking, an overload alarm and communication indicators. This meter can be used in sub-billing applications and supports 4 tariff schedules. The meter provides the following accuracy classes: Active Energy: class 0.5S per IEC 62053-22, Active Energy: class C per EN 50470-3 and Active Energy: class 0.5S per IEC 61557-12. The meter will measure Active and Reactive Power, Active and Reactive Energy, Voltage and Current. With four quadrant Energy measurement. Designed for 50Hz or 60Hz networks, supply voltage can range from 100 to 277VAC or 173 to 480VAC. The rated current goes through a 1A or 5A transfomer to be measured in this meter and will support Single Phase and Neutral, Three Phase and Three Phase and Neutral configurations. Communication protocol is Modbus with screw terminal support. There is one programmable digital input and one programmable digital output that can be used as a pulsed output. Certifications include EAC, CE, UL and MID. Product dimensions are as follows: width 3.54 in (90 mm), depth 2.72in (69 mm), height 3.74 in (95 mm) and product weight 9.17 oz (260 g). Compatible with power management software to take advantage of the IoT digital power installation.

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  • Specifications

    Range Acti9
    range of product Acti9 iEM3000
    Device short name iEM3255
    Product or Component Type Energy meter
    Poles description 3P + N
    1P + N
    Type of measurement Active and reactive energy
    Active and reactive power
    Metering type Active, reactive, apparent energy (signed, four quadrant)
    Device Application Multi-tariff
    Partial meter
    Sub billing
    Accuracy class Class 0.5S active energy IEC 62053-22
    Class 0.5S active energy IEC 61557-12
    Class C active energy EN 50470-3
    input type External CT 1 A or 5 A
    Line Rated Current 5 A
    1 A
    Rated voltage 100…277 V
    173…480 V
    Network Frequency 60 Hz
    50 Hz
    Technology Type Electronic
    display type LCD display
    Sampling rate 32 samples/cycle
    Measurement current 1…32767000 mA
    Maximum value measured 99999999 MWh
    tariff input Tariff 4)
    Communication port protocol Modbus RTU 9.6, 19.2 and 38.4 kbauds even/odd or none 4000 V
    Communication port support Screw terminal block RS485
    Local signalling Green indicator light power ON
    Yellow flashing LED accuracy checking
    alarm overload
    Yellow indicator light communications are active on the Modbus port (Modbus)
    Number of inputs 1 digital 0...5 V/11...40 V 24 V DC
    Number of Outputs 1 digital (static)
    Output voltage 5...40 V DC@50 mA
    Mounting Mode Clip-on
    Mounting Support DIN rail
    Connections - terminals Current circuit screw terminals 0.01 in² (6 mm²)
    Voltage circuit screw terminals 0.00 in² (2.5 mm²)
    Overvoltage category III
    Standards BS EN 61557-12:2021
    IEC 61557-12:2021
    EN 61557-12:2021
    BS EN 61326-1
    IEC 61326-1
    EN 61326-1
    BS EN 62052-11:2020
    IEC 62052-11:2020
    EN 62052-11:2020
    BS EN 62053-21
    IEC 62053-21
    EN 62053-21
    BS EN 62052-22
    IEC 62053-22:2020
    EN 62052-22
    BS EN 62052-23
    IEC 62053-23:2020
    EN 62052-23
    BS EN 62052-31:2015
    IEC 62052-31:2015
    EN 62052-31:2015
    BS EN 61010-1:2010
    EN 61010-1:2010
    IEC 61010-1:2010
    UL 61010-1:2010
    BS EN 61010-2-30
    IEC 61010-2-30
    EN 61010-2-30
    UL 61010-2-30
    BS EN 50470-3
    EN 50470-3
    BS EN 50470-1
    EN 50470-1
    ANSI C12.20
    Product certifications CE IEC 61010-1 safety)
    CE EN 61557-12 power monitor)
    CE EN/IEC 61326-1 EMC)
    UKCA BS EN 61010-1 safety)
    UKCA BS EN 61557-12 power monitor)
    UKCA BS EN 61326-1 EMC)
    CULus UL 61010-1 safety)
    CULus EN 61010-1 safety)
    EAC EN 50470-3 sub-meter)
    RCM EN 62052 sub-meter)
    KZ EN 50470-3 sub-meter)
    METAS EN 50470-1 sub-meter)
    MID EN 50470-3 sub-meter)
    MID EN 50470-1 sub-meter)
    NMI NMI M 6-1
    IP degree of protection IP40 front panel: conforming to IEC 60529
    IP20 body: conforming to IEC 60529
    Pollution degree 2
    Relative humidity 5…95 % 122 °F (50 °C)
    Ambient air temperature for operation -13…158 °F (-25…70 °C) - IEC
    Ambient Air Temperature for Storage -40…185 °F (-40…85 °C)
    Operating altitude < 6561.68 ft (2000 m)
    Color White
    9 mm pitches 10
    Width 3.54 in (90 mm)
    Height 3.74 in (95 mm)
    Depth 2.72 in (69 mm)
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